if else condition - empty vector

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aurc89
aurc89 2014-8-21
评论： aurc89 2014-8-21
Hello, I have a doubt on this code:
x = []
if x == []
a=3
else
a=4
end
I don't understand why it always returns a = 4, even if x is an empty vector. How shall I modify it to obtain a right condition on x ? Thanks

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Robert Cumming
Robert Cumming 2014-8-21
help isempty

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